Trolley-pole clamp.



L. G, BOWEN.`

TROLLEY POLE CLAMP. APPLICATION FILED JUNBZ, 1911.

Patented Ja11.7;1913 aA 1 ,u if l y 4. 101 "mum E is y 6 14 K 5 4 A* 'I me @Bbw agro-will. or xanwrlnmssgm f I v f A speeicationot-Let'ters Yatent. f Patented Jair. 7, 1913.

' appunti@ mea ,Tuite 2,1911. lserialnaesasoo.'

n T o 'all 'whom it myomem:' Beit known 'that I- LESLIE cltlfzenof the -Unite Kansas City, in the county of Jackson andvr 5, State :of Missouri,

v` useglullmprovements in Trolley-Pole Clamps, .o f which the followin isa specification. The in vention vre ates to clam s, and moreparticglarlyto the'class of tro ey pole 1 0' 'clampingdevices for use on trolley cars. e .p 1"1pnu'y.objoct o:f th einvention is 'the provisionof a` clampin'which a trolley` pole, when in low'eredpositiom willbe'h'eld lest, andiwh'en itis desired to have the .trol-4 'leywheelcontactwith the overhead wire, it 'onlyj toY pull-2- downwardly upon e upon the sam'e will be' from the clamp. object .of .the" inventiongis the 'go'iprovisiom of a elampf-'of this -character'jin which; the trolley pole', when locked therein,

lieprevented .from rising, vthelfeb s us.- Wheel from the oyerl'leadl ectric G. Bew-EN', a

isgsimplein construction', .thoroughl reliabl'efand 'eilicient infits purpose, and7 .pensive'in manufacture. so :With these y inventioncon'sist'sin the construction, combinationandarran `in e'nt'of hereinaftermore 1' ly'j described, illustrated in the accompanying dra'wingaand pointed out'in the .claims 'hereunto' appended.

thedr'awin'gs': Figure 1 is.a fragmen- -.ta 1"y Herspectiveyiew of a ca r roof, showin aftro ey pole mounted thereon 'and lowere fintO.

the -sai, ing-'constructed accordance with the'nvolition. Figi' 2 isa vertical longitudinal vsectional .view through the clamp shoxvix'ig States, residing at..

have .y invented new 'and lowered position 'awhilev 1n lowered v position, where- -means' o'f .catch ostfaffthe' invention 'ishef j pmv'isionof a amp of lthis character which.,

in' ex'v and other objects inv view, the

lng formed withan outwardly parts, as will be.

enV agementfwith the clamp' for holding g pol'e in such position, the clamp be '.'Fi 4 is aperspective `view of one. of the haracters indicate cordes1gnates a portion of the-roofof a ca'r, `on wlnch 1s mounted in the ordinary 'wellknown. manner a trolley pole 6, the lat-ter.

to be will be locked by means of being of the usual' type and is adapted .raised and lowered, as usual, and when in 'a clamp, present-ly described.

Referring-to, the drawings by numerals, 5

' 'lfhe clamp comprisesa base plate?, from yformed of spaced vertically dispose the same 'being cham' neled uprights or posts 8, the channels 8 therein opening through the-inner edges of or posts 8, at their at their inner edges, so as to, 4formv a wide v the said posts or uprights. *These prights upper ends, are rounded.

entrance-tothe space between tIie'said posts or uprights lowered, w' pass into the saispace theA troll'e'y pole 1n lowered positioi'i.l by presently de'- scribed whereby the' .trolley pole whenf freel between the upriggts or posts 8 for holding l.

Moted within` .the channels -8 fin the lostsor uv ri hts 8 near'vth'e u rends .i)hereof,-' 'arepoposedl Ppe prisin'g substantially .L -shaped catchgmem- 'bers 9', Vthe same-'being mounted upon. pivots 10 passedtransvcrsel -through tbe upright's elements, f comor posts and said members, .each member be.

tapered I tip' 11 at one-end, while-its opposite end is formed with' a short substantially right an` gular extension 12 rovided with flat "fa'cesj .11" 'and 12'., tie faces'll being nor+ l()l mally .engagedand overlapped b fthe free ends of the resilient limbs y fitted inl the' channels'in theA uprights' or posts 8, and has a limited vertical sliding movement therein, so that on the lowering.

fof its limbs l13 will slidefrom' the flat faces s ung outwardly for4 the freeing of the trolley' pole- 6, the' spring member 14 being -of the said spring member 14, the tree ends moved to Alowered position in. a manner lpresently described.

Interposed between the uprights or posts .8 and engaging the :flat faces 12'. of the catch members 9y are leaf s rings 15, the' samefbeing engaged at their lower ends with cross pins 15 mounted in the posts or lnbers i) so as to hold the ient with each other to perc tch 'members to rock upon the l J pole is. being4 lowered ch the tips ll, so that the pace between the and also when the said rated thel tips 'li of 'the said pole will uprights or po pole 6 is beim' catch member: p outwardly-away iroi'n each other to .permit the said pole to pass `between the catch members and ont; of, the entrance vin the housing of the clamp for the contactV olf its wheel with the (werliea'd 'trolley wire.

The tree ends of the limbs i3' of the ,pring lli when engaged with andr over' lapliinnT the hat te es 'll' of 4the catch membere 9; are g itecl from being moved toward nach other by means oi' the cross pins l? which are lined-transversely ot the channels 8 in the Vertical.' uprights or posts El, so that it will be impossible o'r the catch v members at 'their tips ll., to swing npwarclly and outwardly when the springA member 't4 is elevated, and the' tree ends of the limbs l are Vengaged with the said catch. members, in a manner hereinbefore described. c

lnterposed between the closed end of the ll-shaped spring memberil and the base plate an upwardly bowed leaf spring lo which is' adapted to move thee-aid spring le upwardly in the channels in the posts or nprights S., when the right angular Vpostions l2 of the said catch members 9 have been swung ont ot thepath of movement oil the free ends ot' the limbs 13 ofthe said spring members lll, and on the rising ot the spring member le its free end will .but the flat faces l0, so that when 4the trolley pole 6 .rises in the space between the uprights or posts 8 and contacts with the tips l1 ot ,the

catch members7 the latterwill freely swing upwardlyland outwardly, thereby' allowing the trolley pole o to pass the tips an'dben come freed from the clamp ln the operation of L,he clamiki,l the parts thereof are norn'ially in the position, Shown in 2 of the cl awings, tha-tis to say,

prior to the lowering ot the trolley pole 6 in the clamp, and on the lowering ot' the said pole, the same contacts with the tips ll of the catch members 9V, causingthem to slightly rotate on their pivots l0 in a downward direction against the resistancev 'ot the spring;v 1G? enter the space between the uprights 8 and become .locked in the housing, of vthe clamp, lt will be apparent that hehontclimembers 9 will 'be lprerented from@ swinging npwardly and 'outwardly :for the 'reeingof their upper -tree ends rest l the pole 6 by ist being designed to aoc.l

il will swing upwardly andthns permitting the pole to.

Leases? reason of the overlapping of the free ends of the limbs i3 .ofthe spring member 14.' l.

Now, should it be desired to release the. trolley pole 6 Aso as to permit the same to rise, whereby its wheel will contact with the overheadv electric wire, it only necest sary to pull downwardly uponv the pole Sy bringing it in contact. with the closed end of the spring member lll, causing it to lower l with the pole, thereby sliding the free Vends 'of the limbs 1S of the said. spring memberv from the faces 1l of' the right angular portionsv of the catch members 9, causing the said free ends to ride below 'the flat facesv l0 of the said extensions of the catch members Thuson the raising of the pole 6 against the tipsll of the same, they will swing upwardlyhand outwardly' permitting thepole 6 to pass the catch members and become .freed from the clamp. On again lowering the pole G'into contact withthe rocked on their pivots 10 in a downward directiom' so that the free ends of the'limbs 13 of the springmelnber 14 will clear the right angular extensions of the catch members, and upon: the rising oer le? the said free ends will engage and 'overlap the flat position shown in FigfQofjthe drawings, therebylocking the trolley pole 6 in lowered position inthe clamp..

is lowered and engaged `in the clamp, y,the same will be secntely held in suchposition, and'when pulling causing the lowering' of the spring member lll, the catch members will be free for raising the pole, wherebyit' may swing to .raised position to bring its trolley wheel in Contact with the overhead electric current wire. 4

'What is claimed is: c l. A trolley pole clamp comprising a shell adapted to'be mounted upon the roof of a car and having a central elongated opening extending through the top thereof for 'receiving a trolley pole7 latch means withinthe shell and intersecting the open. ing for retaining said pole when engaged *thereint and means within the shell and in the path ot movement of the pole for engagement there *ith when loweredto :tree Athe latchmeansto permit the release of the polo from thelopening inthe shell.'

2. A pole clamp comprising a' shell adapted' to be secured to a car and having a central J elongated on eftending through its top for rece-i. g e trolley'pole pivotally secting thel *tiembers jt'aces 11, and assume the` downwardly on the pole,

within the tips ll of the members 9, they willbe of the spring mem- (i It, is clearly evidentthat when the pole 6 i110' within the shell when inserted therein, elfi 'on Contact of the pole therewith the said means will -free the' latch members to ing in the shell. l e

E. The combination with a trolley pole of a device comprising a base having spaced vertically disposed channeled u rights between which the pole is adapte) to swing, locking jews pivoted-in the chenneled upr'iglrts' and engageable with-the pole'anda nlldeble spring member' mounted in 'the up- Witnesses .t`

rights for normally holding the jaws in position for sustaining the pole between said uprights' and adapted for lowering movement by the leasing the said pole from rights. I In testmon .whereof I aix in presence o- 'two witnesses.

LESLIE G. lpOWElI.Y

MARTHA TARVIN, JOHN C. Room.

between the npmy signature pole to free the jaws for-re- 

